micrometer

1
[ mahy-krom-i-ter ]
/ maɪˈkrɒm ɪ tər /
|

noun

any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
Also called mike. micrometer caliper. a precision instrument with a spindle moved by a finely threaded screw, for the measurement of thicknesses and short lengths, commonly used by machinists for turning shafts or boring holes.

Nearby words

  1. micromere,
  2. micrometastasis,
  3. micrometeorite,
  4. micrometeoroid,
  5. micrometeorology,
  6. micrometer screw,
  7. micromethod,
  8. micrometre,
  9. micrometry,
  10. micromicro-

Also especially British, mi·crom·e·tre.

Origin of micrometer

1
First recorded in 1660–70; micro- + -meter

micrometer

2
[ mahy-kroh-mee-ter ]
/ ˈmaɪ kroʊˌmi tər /

noun

Origin of micrometer

2

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for micrometer


British Dictionary definitions for micrometer

micrometer

/ (maɪˈkrɒmɪtə) /

noun

any of various instruments or devices for the accurate measurement of distances or angles
Also called: micrometer gauge, micrometer calliper a type of gauge for the accurate measurement of small distances, thicknesses, diameters, etc. The gap between its measuring faces is adjusted by a fine screw, the rotation of the screw giving a sensitive measure of the distance moved by the face
Derived Formsmicrometry, nounmicrometric (ˌmaɪkrəʊˈmɛtrɪk) or micrometrical, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for micrometer

micrometer

n.

1660s, from micro- + -meter. Originally a telescope attachment; from 1884 as a craftsman's fine measuring tool. Related: Micrometry; micrometric.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for micrometer

micrometer

1
[ mī-krŏmĭ-tər ]

A device for measuring very small distances, angles, or objects, especially one based on the rotation of a finely threaded screw, as in relation to a microscope.

A unit of length in the metric system equal to one millionth (10-6) of a meter. Also called micron
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.